Polymerization of aniline on bacterial cellulose and characterization of bacterial cellulose/polyaniline nanocomposite films

Lee, Byoung Ho; Kim, Hyun Joong; Han, Yang‐Su

doi:10.1016/j.cap.2011.04.045

Cited by 112 publications

(41 citation statements)

References 27 publications

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“…The melting and freezing temperatures were measured by drawing a line at the point of maximum slope of the leading edge of the peak, and extrapolating to the base line. The latent heat capacities of the SSPCMs were determined by numerical integration of the area under the peaks that represent the solid-solid and solid-liquid phase transitions [34]. Their thermal durability was measured by thermo gravimetric analysis (TGA: TA Instruments, TGA Q5000) on samples of approximately 2-4 mg, over the temperature range 20-600°C and at a heating rate of 2°C/min, under a nitrogen flow of 20 ml/min.…”

Section: Characterization Techniquesmentioning

confidence: 99%

Thermal properties of shape-stabilized phase change materials using fatty acid ester and exfoliated graphite nanoplatelets for saving energy in buildings

Seo

Jeong

et al. 2015

Solar Energy Materials and Solar Cells

115

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Section: Characterization Techniquesmentioning

confidence: 99%

Thermal properties of shape-stabilized phase change materials using fatty acid ester and exfoliated graphite nanoplatelets for saving energy in buildings

Seo

Jeong

et al. 2015

Solar Energy Materials and Solar Cells

115

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“…Thermal stability of the Mixed SSPCMs was analyzed by thermogravimetric analysis (TGA, Q-5000 IR, TA Instruments, New Castle, PA, USA) on approximately 11-14 mg of the samples within the range from 20 to 600˝C at a heating rate of 10˝C/min under a nitrogen flow of 20 mL/min. The TGA was measured with the composites placed in a high quality nitrogen (99.5% nitrogen, 0.5% oxygen content) atmosphere to prevent unwanted oxidation [26]. The thermal conductivity of the Mixed SSPCMs were measured by TCi thermal conductivity analyzer (C-Therm Technologies Ltd., Fredericton, NB, Canada) at the temperature of 10˝C.…”

Section: Characterization Techniquesmentioning

confidence: 99%

Thermal Performance Evaluation of Fatty Acid Ester and Paraffin Based Mixed SSPCMs Using Exfoliated Graphite Nanoplatelets (xGnP)

et al. 2016

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Phase change materials (PCMs) have been used in various fields including the materials of buildings. In this research, mixed shape-stabilized PCMs (Mixed SSPCMs) were prepared by impregnating coconut oil and n-hexadecane into exfoliated graphite nanoplatelets (xGnP) through a vacuum impregnate method. Coconut oil is fatty acid ester PCM which is relatively economical in comparison to other PCMs, and n-hexadecane is paraffin PCM that has high latent heat capacity. Drawbacks include leakage in a liquid state and low thermal conductivity resolved by xGnP. When preparing Mixed SSPCMs, coconut oil and n-hexadecane were impregnated at different proportions, namely 70:30, 50:50, 30:70 wt %. Mixed SSPCMs were analyzed through SEM, FT-IR, DSC, TGA and TCi. As a result, we confirmed the microstructure, chemical stability, thermal properties, thermal stability and thermal conductivity of Mixed SSPCMs. Latent heat capacity of Mixed SSPCMs were 89.06, 104.30 and 124.50 J/g while those of SSPCMs containing single PCM were 82.34 and 96.40 J/g. Thermal conductivity of Mixed SSPCMs was more than 284% higher than that of pure coconut oil and n-hexadecane. Finally, we confirmed that coconut oil and n-hexadecane were impregnated into xGnP, and the Mixed SSPCMs have high thermal durability.

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“…36 The next stage (4 % weight-loss) between (175 and 300)°C can be a result of thermal dedoping of the nanocomposite and simultaneous evolution of CO 2 . 37 The last step of weight-loss (10 %) which occurred between (300 and 600)°C is probably due to final degradation of the copolymer. 36 3.4.…”

Section: Journal Of Chemical and Engineering Datamentioning

confidence: 99%

Preparation and Cationic Dye Adsorption of Novel Fe₃O₄ Supermagnetic/Thiacalix[4]arene Tetrasulfonate Self-Doped/Polyaniline Nanocomposite: Kinetics, Isotherms, and Thermodynamic Study

2015

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In this study, a novel magnetically separable nanoadsorbent, namely, Fe 3 O 4 @PAmABAmPD-TCAS consisting of a magnetite core and conductive terpolymer of aniline/m-aminobenzoicacid/m-phenilendiamine shell which was self-doped by protonic acid of thiacalixarene tetrasulfonate pendent groups has been synthesized in a three step procedure. Adsorption features of the magnetic nanoadsorbent were evaluated by using methylene blue (MB) and malachite green (MG) as adsorbates. The isotherms, kinetics, and thermodynamics of the adsorption of MB and MG onto Fe 3 O 4 @PAmABAmPD-TCAS nanoadsorbent have been studied in various experimental conditions, i.e., initial dye concentration, contact time, solution pH, adsorbent dosage, and temperature. The obtained results fitted well to the Langmuir model and the kinetics of the adsorption process were found to follow the pseudo-second-order kinetics. The synthesized nanoadsorbent revealed improvements in terms of adsorption capacity for the dyes as a result of its high surface area and large amount of functional groups. The thermodynamic study was conducted by calculating a number of thermodynamic parameters such as the standard Gibbs energy (ΔG°), standard enthalpy (ΔH°), and standard entropy (ΔS°) changes. The high sensitivity of the magnetic nanoadsorbent to external magnetic field culminates in its efficient and easy separation.

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Polymerization of aniline on bacterial cellulose and characterization of bacterial cellulose/polyaniline nanocomposite films

Cited by 112 publications

References 27 publications

Thermal properties of shape-stabilized phase change materials using fatty acid ester and exfoliated graphite nanoplatelets for saving energy in buildings

Thermal properties of shape-stabilized phase change materials using fatty acid ester and exfoliated graphite nanoplatelets for saving energy in buildings

Thermal Performance Evaluation of Fatty Acid Ester and Paraffin Based Mixed SSPCMs Using Exfoliated Graphite Nanoplatelets (xGnP)

Preparation and Cationic Dye Adsorption of Novel Fe₃O₄ Supermagnetic/Thiacalix[4]arene Tetrasulfonate Self-Doped/Polyaniline Nanocomposite: Kinetics, Isotherms, and Thermodynamic Study

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Polymerization of aniline on bacterial cellulose and characterization of bacterial cellulose/polyaniline nanocomposite films

Cited by 112 publications

References 27 publications

Thermal properties of shape-stabilized phase change materials using fatty acid ester and exfoliated graphite nanoplatelets for saving energy in buildings

Thermal properties of shape-stabilized phase change materials using fatty acid ester and exfoliated graphite nanoplatelets for saving energy in buildings

Thermal Performance Evaluation of Fatty Acid Ester and Paraffin Based Mixed SSPCMs Using Exfoliated Graphite Nanoplatelets (xGnP)

Preparation and Cationic Dye Adsorption of Novel Fe3O4 Supermagnetic/Thiacalix[4]arene Tetrasulfonate Self-Doped/Polyaniline Nanocomposite: Kinetics, Isotherms, and Thermodynamic Study

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Preparation and Cationic Dye Adsorption of Novel Fe₃O₄ Supermagnetic/Thiacalix[4]arene Tetrasulfonate Self-Doped/Polyaniline Nanocomposite: Kinetics, Isotherms, and Thermodynamic Study